Encourage your children to try new things, but try not to__________them too hard.
| A．draw | B．strike |
| C．rush | D．push |
It was ________ cold winter night and the moon was shining brightly across ________ night sky.
| A．不填；a | B．a；the |
| C．the；a | D．the；不填 |
The parents were shocked by________news that their son needed________operation on his knee.
| A．a；/ | B．the；/ |
| C．the；an | D．a；an |
India attained________independence in 1947，after________long struggle.
| A．不填；a | B．the；a |
| C．an；不填 | D．an；the |
Whenever I made mistakes，the teacher pointed them out with________.
| A．curiosity | B．satisfaction |
| C．envy | D．patience |
Carbon dioxide，which makes a________between us and the sun，prevents heat from getting out of the atmosphere easily，so the earth is becoming warmer.
| A．difference | B．comparison |
| C．connection | D．barrier |